西宁盆地周边灌木植物护坡水文效应影响要素研究

通过对试验区种植的生长期为5年的柠条锦鸡儿、霸王、白刺、四翅滨藜和北方枸杞等5种灌木地上部分生长量进行观测和统计,并对其护坡水文效应影响要素进行了探讨和研究。结果表明:灌木植物的地上生长量影响着灌木植物护坡水文效应和固坡效果; 其中,其株高、地径对于灌木植物的水文效应的影响均不同,且相同生长期的5种灌木植物其地上部分生长量指标所表现出的水文效应和固坡效果差异较大。通过试验区影响灌木植物护坡水文效应影响因素的研究,有助于筛选出护坡水文效应及护坡效果相对显著的灌木植物属种。

STUDY ON THE FACTORS INFLUENCING THE HYDROLOGICAL EFFECTS FOR SLOPE PROTECTION OF FIVE SHRUBS AROUND XINING BASIN

Five shrubs planted for five years in the testing areas were studied.They are Caragana korshinskii,Zygophyllum xanthoxylon,Nitraria tangutorum,Atriplex canescens and Lycium chinense.Through the observation of the up-ground growing increment and the statistics results of the five shrubs,the factors influencing the hydrological effects for slope protection were explored.The results show: the up-ground growing increment of shrubs have an effect on their hydrological effects and the slope protection; plant height and diameter have different effects on the shrubs hydrological effects,and although the shrubs have the same growing period,their influences about their up-ground growing increment on the effects of both hydrological and slope protection are quite different.The study helps to choose the kind of shrubs which have better effects in the hydrological effect and slope protection.